Electronic device with light guide module comprising two light guide units and elastic unit there between
A light guide module is provided. The light guide module includes a first light guide unit, a second light guide unit and an elastic unit. The elastic unit is disposed between the first light guide unit and the second light guide unit. One side of the elastic unit is connected to the first light guide unit, and the other side of the elastic unit is connected to the second light guide unit. In an initial state, a first distance is formed between the first light guide unit and the second light guide unit. In an extended state, the elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit.
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This application claims priority of Taiwan Patent Application No. 109103802, filed on Feb. 7, 2020, the entirety of which is incorporated by reference herein.
BACKGROUND OF THE INVENTION Field of the InventionThe present invention relates to a light guide module, and in particular to a light guide module capable of adjusting the distance between the light guide posts.
Description of the Related ArtThe conventional electronic device has a housing, a light guide module and a plurality of light sources. The housing has a plurality of light output holes. The light guide module corresponds to the light output holes to guide the light provided by the light sources to the light output holes. Conventionally, manufacturing differences may occur on the light output holes, the light guide module and the light sources. The light provide by the light sources cannot be sufficiently guided to the light output holes. There are therefore problems with the conventional design such as light mixing and insufficient light output.
BRIEF SUMMARY OF THE INVENTIONEmbodiments of the invention are provided to address the aforementioned difficulty.
In one embodiment, a light guide module is provided. The light guide module includes a first light guide unit, a second light guide unit and an elastic unit. The elastic unit is disposed between the first light guide unit and the second light guide unit. One side of the elastic unit is connected to the first light guide unit, and the other side of the elastic unit is connected to the second light guide unit. In an initial state, a first distance is formed between the first light guide unit and the second light guide unit. In an extended state, the elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit.
In another embodiment, an electronic device is provided. The electronic device includes a housing, a circuit board and a light guide module. The housing includes a first housing opening and a second housing opening. The circuit board includes a first light source and a second light source, wherein the first light source provides a first light, and the second light source provides a second light. The light guide module includes a first light guide unit, a second light guide unit and a first elastic unit. The first light guide unit corresponds to the first light source and the first housing opening, wherein the first light guide unit guides the first light, and the first light passes through the first housing opening. The second light guide unit corresponds to the second light source and the second housing opening, wherein the second light guide unit guides the second light, and the second light passes through the second housing opening. The first elastic unit is disposed between the first light guide unit and the second light guide unit, wherein one side of the first elastic unit is connected to the first light guide unit, and the other side of the first elastic unit is connected to the second light guide unit. In an initial state, a first distance is formed between the first light guide unit and the second light guide unit, and in an extended state, the first elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit.
In the light guide module of the embodiment of the invention, an elastic unit is utilized to adjust the distance between the first light guide unit and the second light guide unit. Therefore, even though the housings have manufacturing differences, the first light guide unit and the second light guide unit can be made to correspond sufficiently to the first housing opening and the second housing opening. Conventional problems such as light mixing and insufficient light output can be prevented.
A detailed description is given in the following embodiments with reference to the accompanying drawings.
The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
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In one embodiment, the first light guide post 112 corresponds to the first light source 311 and the first housing opening 211, and the second light guide post 122 corresponds to the second light source 312 and the second housing opening 212.
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In the light guide module of the embodiment of the invention, the elastic unit is utilized to adjust the distance between the first light guide unit and the second light guide unit. Therefore, even though housings are manufactured differently, the first light guide unit and the second light guide unit can be made to correspond sufficiently to the first housing opening and the second housing opening. Conventional problems such as light mixing and insufficient light output can be prevented.
Use of ordinal terms such as “first”, “second”, “third”, etc., in the claims to modify a claim element does not by itself connote any priority, precedence, or order of one claim element over another or the temporal order in which acts of a method are performed, but are used merely as labels to distinguish one claim element having a certain name from another element having the same name (but for use of the ordinal term).
While the invention has been described by way of example and in terms of the preferred embodiments, it should be understood that the invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims
1. A light guide module, comprising:
- a first light guide unit;
- a second light guide unit;
- an elastic unit, disposed between the first light guide unit and the second light guide unit, wherein one side of the elastic unit is connected to the first light guide unit, and the other side of the elastic unit is connected to the second light guide unit,
- wherein in an initial state, a first distance is formed between the first light guide unit and the second light guide unit, and in an extended state, the elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit,
- wherein the first light guide unit comprises a first unit base and a first light guide post, the second light guide unit comprises a second unit base and a second light guide post, the first light guide post is connected to the first unit base, the second light guide post is connected to the second unit base, one side of the elastic unit is connected to the first unit base, and the other side of the elastic unit is connected to the second unit base,
- wherein the first light guide post comprises a first section and a second section, and the first section and the second section protrude from opposite surfaces of the first unit base.
2. The light guide module as claimed in claim 1, wherein the first light guide unit, the second light guide unit and the elastic unit are integrally formed.
3. The light guide module as claimed in claim 1, wherein in the initial state, the first light guide post is naturally parallel to the second light guide post, and in the extended state, the first light guide post is naturally parallel to the second light guide post.
4. The light guide module as claimed in claim 1, wherein in the initial state, the first unit base, the second unit base and the elastic unit are located on the same plane, and in the extended state, the first unit base, the second unit base and the elastic unit are also located on the same plane.
5. The light guide module as claimed in claim 1, wherein the elastic unit comprises a first elastic arm and a second elastic arm, the first elastic arm faces the second elastic arm, one end of the first elastic arm is connected to the first unit base, the other end of the first elastic arm is connected to the second unit base, one end of the second elastic arm is connected to the first unit base, and the other end of the second elastic arm is connected to the second unit base.
6. The light guide module as claimed in claim 5, wherein the first elastic arm and the second elastic arm are U-shaped.
7. The light guide module as claimed in claim 6, wherein in the initial state, the first distance is formed between the first light guide unit and the second light guide unit in the first direction, and in the extended state, the second distance is formed between the first light guide unit and the second light guide unit in the first direction, the first elastic arm has an elastic arm length in a second direction, a third distance is formed between the first elastic arm and the second elastic arm in the second direction, and in the initial state, a ratio of the elastic arm length to the third distance is greater than 0.9, and the first direction is perpendicular to the second direction.
8. An electronic device, comprising:
- a housing, comprising a first housing opening and a second housing opening;
- a circuit board, comprising a first light source and a second light source, wherein the first light source provides a first light, and the second light source provides a second light; and
- a light guide module, comprising:
- a first light guide unit, corresponding to the first light source and the first housing opening, wherein the first light guide unit guides the first light, and the first light passes through the first housing opening;
- a second light guide unit, corresponding to the second light source and the second housing opening, wherein the second light guide unit guides the second light, and the second light passes through the second housing opening;
- a first elastic unit, disposed between the first light guide unit and the second light guide unit, wherein one side of the first elastic unit is connected to the first light guide unit, and the other side of the first elastic unit is connected to the second light guide unit,
- wherein in an initial state, a first distance is formed between the first light guide unit and the second light guide unit, and in an extended state, the first elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit.
9. The electronic device as claimed in claim 8, wherein the first light guide unit comprises a first unit base and a first light guide post, the second light guide unit comprises a second unit base and a second light guide post, the first light guide post is connected to the first unit base, the second light guide post is connected to the second unit base, one side of the first elastic unit is connected to the first unit base, the other side of the first elastic unit is connected to the second unit base, the first light guide post corresponds to the first light source and the first housing opening, and the second light guide post corresponds to the second light source and the second housing opening.
10. The electronic device as claimed in claim 9, further comprising a shade, wherein the shade comprises a first shade opening and a second shade opening, the first light guide post is inserted into the first shade opening, and the second light guide post is inserted into the second shade opening.
11. The electronic device as claimed in claim 10, wherein the shade is located between the first unit base and the first housing opening.
12. The electronic device as claimed in claim 10, wherein the light guide module is restricted on the shade, and the shade is affixed to the housing.
13. The electronic device as claimed in claim 12, wherein the housing comprises a plurality of latches, the shade comprises a plurality of shade positioning holes, the first unit base and the second unit base comprises a plurality of base positioning holes, and each latch passes through one of the shade positioning holes and one of the base positioning holes.
14. The electronic device as claimed in claim 10, further comprising a shielding frame, wherein the shielding frame comprises a first frame grid and a second frame grid, the first light guide post extends in the first frame grid, the second light guide post extends in the second frame grid, and at least a portion of the light guide module is sandwiched between the shielding frame and the shade.
15. The electronic device as claimed in claim 14, wherein the first light guide post comprises a first section and a second section, the first section and the second section are formed on opposite surfaces of the first unit base, the first section is inserted into the first shade opening, and the second section extends in the first frame grid.
16. The electronic device as claimed in claim 9, wherein in the initial state, the first distance is formed between the first light guide unit and the second light guide unit in a first direction, and in the extended state, the second distance is formed between the first light guide unit and the second light guide unit in the first direction, the light guide module further comprises a second elastic unit, and in a second direction, a size of the second elastic unit is smaller than a size of the first elastic unit.
8469577 | June 25, 2013 | Kang |
Type: Grant
Filed: Sep 21, 2020
Date of Patent: Jul 20, 2021
Assignee: WISTRON NEWEB CORP. (Hsinchu)
Inventors: Chi-Wen Tsai (Hsinchu), Che-Min Lin (Hsinchu), Shin-Jie Ho (Hsinchu)
Primary Examiner: Robert J May
Application Number: 17/026,588
International Classification: F21V 8/00 (20060101); F21V 17/00 (20060101); F21V 11/08 (20060101);